OBJECTIVE Previous studies suggest athletes underreport concussions. We sought to determine whether athletes in our clinics have sustained previous concussions that went undiagnosed. DESIGN Multicentered cross sectional study. SETTING Two sport concussion clinics. PATIENTS Patients diagnosed with sport-related concussions or concussions with injury mechanisms and forces similar to those o...

Introduction Commotio cordis is a term used to describe ventricular fibrillation (VF) triggered by a blunt, nonpenetrating blow, often the result of a small ball or puck hitting the chest in the course of recreational or competitive sports. It is typically fatal, though rates of successful resuscitation have improved in recent years. Experimental studies have identified a 10– 40-ms window durin...

Contusion of the eye and of its environs, i.e., injury direct or indirect by the transmission of concussion or shock, which does not produce rupture of the capsule of the eyeball causes a Syeat variety of lesions. These lesions are best divided into two groups, those produced in the interior segment, and those produced in the posterior segment of the eyeball. Among the latter a condition known ...

Ice hockey is a fast paced sport with unique injury potential. A covering physician must be prepared to acutely manage injuries to the face, neck, and chest that are not common in orthopedic practice. Injuries about the face seen in ice hockey include facial fractures, lacerations, and eye and dental injuries. Neck trauma can result in lacerations and neurologic injury. Commotio cordis and sudd...